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Product description

The control head Type 8695 is designed for decentralized automation of ELEMENT Type 21xx pneumatic process valves with smaller orifice. The registration of the valve position is done through a contact-free analogue sensor element, which automatically recognises and saves the valve end position through the Teach-In function during start-up. The integrated pilot valve controls single or double-acting actuators. The design of the control head and the actuator is specially designed for the requirements of a hygienic process environments and enables an internal control air routing without external tubings. Besides the electrical position feedback, the status of the device is shown directly on the control head itself through coloured LEDs. As an option a communication interface, AS-Interface, can be chosen. The housing is easy to clean and features proven IP protection and chemically resistant materials for use in hygienic processing in food, beverage and pharmaceutical industries. Combined with Bürkert ELEMENT actuators, the pneumatic actuating system enables spring chamber aeration that avoids actuator chamber contamination from the environment.